We accounted for that in our cost estimates. We also accounted for the fact that, in general, when building ships, the first is much more expensive because we do not have the expertise and we can't achieve any economies of scale. As the ships are built, we achieve the economies of scale and reach the optimal situation usually around the ninth ship. In our scenario, we were building a new type of ship starting with the fourth ship, so that we are starting almost from square one in terms of productivity.
We also accounted for the fact that retooling would be needed in the shipyard in order to change the production chain.